What state are you in? Your situation will be dependent on your state laws. Some states do not add in extra for daycare, some do. In many siutations, orthodontics are considered cosmetic and therefore not a medical necessity. If it is has been 9 years you definitely need to file for a case review. Modifiying your order to include new things can be a lenghty and expensive process, so weigh the pros and cons carefully. I totally regret my mod that took 2+ years of court battles and over 10K in legal fees for no change whatsoever, and my ex still does not pay CS. What a waste of my life!!